Calling ActiveSupport::Deprecation.warn no longer allowed. Instantiat…

…e and use module specific deprecator.

lib/arbo.rb

@@ -1,5 +1,4 @@
 require 'active_support/core_ext/string/output_safety'
-require 'active_support/deprecation'
 require 'active_support/hash_with_indifferent_access'
 require 'active_support/inflector'
 
@@ -8,6 +7,7 @@ module Arbo
 
 require 'arbo/element'
 require 'arbo/context'
+require 'arbo/deprecator'
 require 'arbo/html/attributes'
 require 'arbo/html/class_list'
 require 'arbo/html/tag'

lib/arbo/deprecator.rb

@@ -0,0 +1,8 @@
+require 'active_support/deprecation'
+
+module Arbo
+  module_function
+  def deprecator # :nodoc:
+    @deprecator ||= ActiveSupport::Deprecation.new
+  end
+end

lib/arbo/element.rb

@@ -137,12 +137,12 @@ def inspect
     end
 
     def to_str
-      ActiveSupport::Deprecation.warn("don't rely on implicit conversion of Element to String")
+      Arbo.deprecator.warn("don't rely on implicit conversion of Element to String")
       content
     end
 
     def to_s
-      ActiveSupport::Deprecation.warn("#render_in should be defined for rendering #{method_owner(:to_s)} instead of #to_s")
+      Arbo.deprecator.warn("#render_in should be defined for rendering #{method_owner(:to_s)} instead of #to_s")
       content
     end
 
@@ -158,7 +158,7 @@ def render_in_or_to_s(context)
       if method_distance(:render_in) <= method_distance(:to_s)
         render_in(context)
       else
-        ActiveSupport::Deprecation.warn("#render_in should be defined for rendering #{method_owner(:to_s)} instead of #to_s")
+        Arbo.deprecator.warn("#render_in should be defined for rendering #{method_owner(:to_s)} instead of #to_s")
         to_s.tap { |s| context.output_buffer << s }
       end
     end